Lynx Audio SW-866V Active 12-Inch Subwoofer with Built-In 400W Sub Amp and 150W 2-Channel High Frequency Amplifier The SW-866V is designed to be mounted in the trunk / cargo space of the vehicle. The harness also has 2 sets of line-output wires for connecting and amplifying two of the component speaker sets in the car. RCA and speaker level inputs for use with aftermarket and factory head units. The wired remote will give you full-control of the bass so that you can adjust it to your liking as you listen to difference genres of music. Active 12" Subwoofer with 21 Channel, Thermal and Short Circuit Protection, Wired Remote for Frequency and Gain Control. Max Output Power: 550 Watts. Complete wiring harness provided